가스/디젤 dual fuel 엔진에서 기계식과 semi 전자식 공연비 제어방식의 특성연구

By utilizing CNG(compressed natural gas) as the alternative fuel to a diesel engine, it is certainly possible to reduce the particulates, soot and NOx from diesel emissions. CNG-diesel dual fuel engine is more effective and adquate to decrease the vehicle emission specially in heavy urban traffic, because it has several merits in the view points of easy conversion, fuel economy, abundant energy source, and convenient driving at the area where fuel refilling system is deficient. In this study, we have developed 2 kinds of dual fuel supply system for natural gas and diesel, as mechanical mixer type and semi electronic type. The performance evaluation and characteristics have been compared each other.